[問題] 能量守衡的問題
A clay, mass 100g, falls from rest a distance 75cm before striking and
sticking to the edge of a wheel(approximated as a solid disk with mass 10kg,
radius 50cm).
問CLAY打到WHEEL時之角速度
我使用能量守衡算
MGH=0.5I(W^2)
其中I為clay加上wheel之轉動慣量
0.1*9.8*0.75=0.5(0.1*0.5*0.5+0.5*10*0.5*0.5)(W^2)
但這樣算答案不對
可以請各位大師指點嗎?
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